Traditional AI API interactions embed user identity into every request by linking API keys directly to user accounts and payment instruments, allowing providers to build comprehensive behavioral profiles.

From the articleEthereum Foundation Rolls Out zkAPI for Anonymous AI Payments - BlockonomiAlso in Ethereum Foundation Launches Privacy Tool That Cuts the Link Between AI Prompts and Payers - Unchained, Ethereum targets AI privacy with zkAPI for anonymous API payments - Cryptopolitan, Ethereum Foundation launches zkAPI to let users pay for AI models without revealing identity